Standby Battery Connection - C-TEC AVAC Installation And Maintenance Manual

AVAC VOICE ALARM SYSTEM

STANDBY BATTERY CONNECTION

We recommend two new, good quality and fully charged 7 AHr 12 V valve regulated lead acid
batteries are used as the AVAC's emergency stand-by power supply. These will typically
provide at least 24 hours standby time and 30 minutes alarm running time.
Note that batteries are required at all AVAC masters and slaves.
Caution: No other type of battery should be used due to risk of explosion and smaller batteries
will reduce the standby time of the system considerably.
The batteries should be connected in series and located in the enclosure as shown in the dia-
gram below. The battery leads and link wire are provided in the accessory pack.
A sophisticated battery monitoring unit protects the batteries against deep discharge by acti-
vating a cut off circuit when the stand-by supply voltage reaches 21 V approx. If batteries are
not fitted, are discharged or in poor condition, a PSU fault will show at the AVAC.
Always dispose of used batteries according to the battery manufacturer's instructions.
Standby battery location and connection
KEEP THIS
AREA CLEAR
TO ENSURE
THE AMPLIFIER
VENTILATED
12V 7AHr
VRSLA
AVAC Installation and Maintenance Manual • Approved Document No. DAU0000402 Rev 6 • Page 14
www.acornfiresecurity.com
!
IS WELL
www.acornfiresecurity.com
!
KEEP THIS
AREA CLEAR
TO ENSURE
THE AMPLIFIER
IS WELL
VENTILATED
POWER
SUPPLY
12V 7AHr
PCB
VRSLA
CONN4
– +
12V 7AHr
VRSLA
POWER
SUPPLY
PCB
CONN4
– +
12V 7AHr
VRSLA